Improvement in fire-proof arches for brick-kilns



J. R. BOWERS. Fire-Proof Arches for Brick-Kilns.

No. 213,805. Patented April 1, 1879.

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UNITED STATES PATENT OFFICE.

JOSEPH R. BOWERS, OF CONCORD, NEW HAMPSHIRE.

IMPROVEMENT IN FIRE-PROOF ARCHES FOR BRICK-KILNS.

Specification forming part of Letters Patent No. 213,805, dated April 1,1879; application filed January 30, 1879.

To all whom it may concern:

Be it known that I, JOSEPH R. BOW'ERS, of Concord, State of NewHampshire, have invented a new Method of Constructing Movable Fire-ProofArches for Brick-Kilns, of which the following is a specification:

The object of my invention is to construct fire-proof arches for.brick-kilns, whereby the great waste and loss on account of theproduction oflbricks of an inferior quality in the arches of brick-kilnsby the present process of forming the arches of unburned brick may beavoided.

My method of constructing these arches is illustrated in the plan View,Figure 1, and sectional view, Fig. 2.

[make brick or tile of fire-proof clay and other material commonly usedin making fireproof tile or brick of convenient size, as represented inFig. 2, and marked A, and in Fig. 1 marked A A A A. These tiles haveholes in them, as shown in the above Figs. 1 and 2. I make gratings ofthe same material, (marked B B in Fig. 1.

To form the arches for a brick-kiln, the tiles or brick A A A A are setup edgewise, and the gratings B B are placed on the top of the tiles, asshown in Fig. 1.

In forming a kiln for burning, the tiles are set up with the gratings onthem, in sections, to any extent, according to the desired size of thekiln.

When the arches are set up for burning, the spaces marked C C in Fig. 1may be set with unburned brick, and the unburned brick are set on top ofthe gratings in the usual manner of face and common brick-kilns.

The space marked D in Fig. 1 forms the arch for the fire. The holesthrough the tiles A A A A and through the gratings B B allow the heat topass readily into the body of the kiln when in the process of burning.The ends or upper jets of the gratings are left a few inches apart, sothat the workmen can see a few of the bricks in the process of burning,and thus be enabled to determine when the desired heat is attained, aswell as in arches constructed of unburned brick.

The arches of my construction bein g able to withstand heating andcooling many times, they may be reused in burning a large number ofkilns.

Many of the advantages gained by my method of forming arches will beapparent, some of which I will describe: First, any unskilled workmancan set up the arches so that they will all be uniform; second, theywill not melt or fall in; third, there will be no obstruction to thedraft on putting fuel into the arches on account of pieces of brickfalling down from the jets, as occurs very often in the arches of commonbrick kilns; fourth, the arches remaining perfect during the process ofburning, the body of the kiln is not liable to sway over, as frequentlyhappens in common brick-kilns, whereby many bricks are injured. Inshort, by using my arches, no misformed arch-bricks are produced, butbricks of a uniform quality are produced in the kiln.

I claim as my invention The movable fire-proof arch or lining forbrick-kilns herein described, consisting of the perforated tiles A andgratings B, made of suitable fire-proof clay and arranged in sections,to operate as and for the purposes set forth.

JOSEPH R. BOWERS. Witnesses:

N. GILES, M. BARTLETT.

